Knauf® insulation delivers sustainable products that offer exceptional R-value, year-round comfort, and reduces sound transmission. Fiberglass insulation is the most cost effective way to increase thermal performance. The easiest way to get more energy savings is to install more insulation. Most people only think of insulation when it's cold out, and for obvious reasons. However, insulation keeps the house cooler in the summer as well as saving money on the air conditioning bill! Save Money: Adding insulation or having the proper amount will reduce your monthly heating and cooling bills. Year-Round Comfort: Insulation will keep your home warmer in the winter and cooler in the summer. Increased Home Value: A properly-insulated home is worth more, making future buyers more interested. 4. Noise Control: Insulation will help deaden sound transfer from room to room or floor to floor.